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JE Pistons forged piston kit for Subaru EJ257, 100mm bore and 8.5:1 compression, supplied as a set of four. Forged in the USA from 2618 aluminum, these pistons feature JE’s Forged Side Relief forging to reduce friction and weight. Accumulator grooves and optional skirt coating improve ring seal and reduce wear and noise. The kit includes high-quality wrist pins, locks and JE Pro Seal premium rings for durable, race-oriented use.
JE Pistons SUB STI EJ257 100mm Bore CR 8.5 KIT Set of 4 Pistons
